نتایج جستجو برای: 1996 and wcq billings
تعداد نتایج: 16835219 فیلتر نتایج به سال:
We briefly report here the occurrence of toxic blooms in the eutrophic reservoir Billings, São Paulo city, Brazil. Water samples were collected in May 2004, during a cyanobacterial bloom. The presence of toxic species was confirmed by using PCR amplifications of a fragment region of genes encoding microcystin synthetase-mcyB. The determination of toxins was performed by liquid chromatography co...
NORMA DAVIS: Good morning. Our first speaker this morning is Dr. Paul Billings who is currently at the California Pacific Medical Center, San Francisco.* He studied at Harvard, getting his M.D. and Ph.D degrees there and then went on to the University of Washington where he trained in internal medicine and medical genetics. Following that, he did a post-doctoral fellowship at David Farber Insti...
testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...
Os metais são reconhecidos pelo caráter potencialmente tóxico às comunidades além de bioacumulativos em alguns organismos. No presente trabalho, avaliou-se as concentrações dos cádmio, cromo, cobre, chumbo, mercúrio e zinco sedimentos três pontos amostragem nos reservatórios Billings, Guarapiranga Rio Grande (São Paulo, Brasil) entre os anos 2008 2017. dados foram comparados à valores referênci...
the extent to which written corrective feedback on linguistic errors can play a role in helping l2 writers improve the accuracy of their writing continues to be an issue of interest to researchers and teachers since truscott (1996) mounted a case for its abolition. while there is growing empirical evidence that written corrective feedback can successfully target some types of linguistic error (...
Resumo Apesar dos grandes investimentos, os métodos artificiais de planejamento familiar ainda apresentam limitações. Desde a década 1950, cientistas trabalham para desenvolver um método natural confiável. Este artigo revisa literatura sobre o Método Ovulação Billings, apontando sua lógica, eficácia, seus benefícios, desafios e suas regras. Trata-se natural, embasado em mais cinquenta anos pesq...
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